examples: Fix criu options' req_for-s

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
yoda: Remove []-s around arguments in help text

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
examples: Add (not complete) ploop.yoda file

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
yoda: Take args len into account when getting the lenght of the longest option

Affect the help text look.

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
yoda: Don't forget to add help option in the list

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
examples: Add more options to ploop yoda file

Heh... The "official" ploop sources already have discrepancy
between the help text and the really accepted options.

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
yoda: Use 'and' in if-s for expression checks

And wanr what option causes expression parse assert

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>